William Cretcher, RAS
NPI 1518178748 · Addiction (Substance Use Disorder) Counselor · Santa Rosa, CA
William Cretcher, RAS is a Addiction (Substance Use Disorder) Counselor provider in Santa Rosa, CA (NPI 1518178748).
Provider details
- NPI number
- 1518178748
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- RAS
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-28
- Last updated
- 2014-08-22
Frequently asked questions
- What is William Cretcher's NPI number?
- William Cretcher's National Provider Identifier (NPI) is 1518178748, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Cretcher's specialty?
- William Cretcher is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is William Cretcher located?
- William Cretcher's practice location on file with NPPES is 1901 Cleveland Avenue, # B, Santa Rosa, CA 95401.
- What is William Cretcher's phone number?
- The practice phone number listed in the NPPES registry for William Cretcher is (707) 566-0170.
- Is William Cretcher's NPI active?
- Yes — William Cretcher's NPI (1518178748) is active in the NPPES registry as of the last update on 2014-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.